package com.crr.servlet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet("/servletB")
public class ServletB extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        获取cookie
        Cookie[] cookies=req.getCookies();
//       如果请求中没有cookie，则数组中为null
        for (Cookie cookie : cookies) {
            System.out.println(cookie.getName()+"="+cookie.getValue());
        }
    }
}